This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 0 |
3 | 1 |
4 | 0 |
5 | 0 |
6 | 10 |
7 | 0 |
8 | 1 |
9 | 280 |
10 | 0 |
11 | 165 |
12 | 15400 |
13 | 1 |
14 | 30030 |
15 | 1401400 |
16 | 6995 |
17 | 6806800 |
18 | 190590401 |
19 | 6506835 |
20 | 1939938000 |
21 | 36212380820 |
22 | 4940624150 |
23 | 687126039601 |
24 | 9163671323015 |
25 | 3761116975000 |
26 | 297754623925175 |
27 | 2982764271647875 |
28 | 3067236941769001 |